Monday, 31 October 2016

Effects of formulation variables on surface properties of wood plastic composites

Published Date
Article (PDF Available)inComposites Part B Engineering 43(2) · March 2012with135 Reads
DOI: 10.1016/j.compositesb.2011.07.011
Degree of surface quality of wood plastic composites (WPCs) is a function of both raw material characteristics and the manufacturing variables. The WPC panels comprised of different panel densities (800, 950, 1000, and 1080kg/m3), wood flour contents (50, 60, 70, and 80wt.%), wood flour sizes (1mm), and hot-pressing temperatures (190 and 210°C) were manufactured using a dry blend/flat-pressing method under laboratory conditions. The surface smoothness of the WPC panels improved with increasing WPC density, plastic content, and hot-pressing temperature while it deteriorated with increasing wood flour size. The reduction in the particle size of the WF resulted in a more compact structure on the WPC surface. In general, the wettability of the samples increased by increasing surface roughness.

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